Car-brake



B. KELLOGG.

(No Model.)

GAR BRAKE.

N. PETLRS. Phmmulhogmphar. wnshingmn. llcA car-trucks taken off with brakes set.

UNITED" STATES BENJAMIN KELLOGG,

PATENT OFFICE.

or rEonIA, ILLINOIS.

CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 410,760, dated September 10, 1889.

Application filed April 9, 1887.

To all whom it may concern:

Be it known that I, BENJAMIN KELLOGG, a citizen of the United States, residing at Peoria, in the county of Peoria and'State of Illinois, have invented a new and useful Improvement in Car-Brakes, of which the following is a speciiication.

My invention relates to that class of carbrakes known as auto1natic; and the iinproveinent consists of the application, construction, combination, and arrangement of the devices used, as set forth in this specification, whereby the applying of the brakes on one car will automatically and expeditiously cause the brakes on the remainder of the cars of the' train to be set, thereby averting accidents and promoting the efiiciency of train service; and I make no claim to that portion of the device which has been known for years past as the ordinary common carbrake, but simply claim the method of'apply- -ing power (generated by the rotary motion of the axle of the car-wheels) to said common car-brake for purposes and in the manner set forth in the accompanying drawings, in which- Figure 1 is a direct View of the bottom of a car, showing all the rods and connections of said car-brake when out of gear. Fig. 2 is a vertical section of part of the mechanism, showing position of car wheel and axle by dotted lines. Fig. 3 is a direct bottom view of brake mechanism as it would appear with the Fig. et is a detailed vieW,-in perspective, of a portion of hooked rod with guide block and stop. Fig. 5 is a detailed and sectional View of one of the shaft-boxes in which the shaft on which friction-pulley is attached turns. Fig. G is a detailed and sectional view of the other shaftbox in which the shaft on which friction-pulley is attached turns.

NIn the drawings, A represents a frictionpulley, which, being drawn in contact with the pulley B, which is iixed on the axle of the car-wheel, causes said frict-ioinpulleyA to revolve.

On the same shaft on which friction-pulley A is attached is the cog-wheel C, which, when the friction-pulley A is drawn against pulley B, engages with the cog-wheel D ou the reelvshaft E, causing said reel-shaft to revolve by means of the rotary motion of the axle of carwheel. On the said reel-shaft E are attached the two chains F and G. tached to brake-rod H and sets the brake on the car. The chain F is attached to the levers I I by the rods J and J and in connection with the block-pulley K. Vhen said chain F is wound on the reel E, it draws the levers I and I inwardly from each end of car, and with these levers the chains attached, viz: L L L2 L3. The said chains L L L2 L3 are one link situated where the chain is attached to lever, which is made of cast-iron or other like material, for the purpose of causing the chain to break at that place should the train break apart.

On the levers at the salne place where chains are attached are the hooks M M M2 M3, so that should train break apart an d cause chains to be broken in aforesaid weak link the brake could be connected by means of the said hooks until train arrived at its destination.

The lever I or I is prevented from sagging by means of the guide-stirrup N in Fig. 3, and prevented from pulling entirely out, should train break apart, by the guard O in Fig. 3,

the strain it is exposed to.

The shaft-boxes P and Q are each constructed of three pieces (see Figs. 5 and 6) respectively, of which a represents a plate of iron hollowed in the center, and t) represents a plate of iron with a slot cut in its center, 'and e represents a piece of iron through which the shaft d turns,which projects through the slot in plate l), and the flanges of which fit in the hollow of plate a, which allows shaft-box e to be moved in said slot and prevents binding in shaft-box e.

The spring R is used for the purpose of automatically throwing the cog-wheels C and D and the friction-pulley A out of gear.

Attached to box P, in which shaft of fric tion-pulley turns, is the chain,v S, which divides into two parts at pulley-block T, one part S running over said pulley-block and connecting with hooked rod U, which projects three or four inches from end of car.

The chain G is atf' made of wrought-iron, with the exception of which is made sufciently strong to withstand A IOO The other portion connects with rod li', wh ich projects three or four inches from the other end of ear. Attached to rod i is the chain V, which connects with brake-spindle, making three places from which brake may be applied, viz: first, from brake-wheel on top of car; second and third, from each or either end of car by connecting the hooked rods r and t" with either of the chains on adjacent car to correspond with chains L L L2 L3, heretofore described. On said rods are the enlargements or stops X and guide-block X to prevent their pulling out should train break apart. (See Fig. t for detail View ot saine.)

It is not absolutely necessary to always use the entire mechanism herein described, it being desirable in some eases (notably streetrailways and other railways having curves of a very short radius) to dispensewith the levers I I', and instead of them to carry the rods J J U U nearly under the middle or center of the bottom of the car. The object of this is to obviate the possible difficulty of having the chains connecting two ears tight ening on short curves.

Operation: Vhen applying this brake,the brake-wheely on the top of car is turned, winding the chain V on the brake-spindle of said brake-wheel and causing the frictionpulley A to be brought in contact with the wheel B on the axle of the car-wheel, and also bringing' the cog-wheels C and I) into gear and causing the reel E to turn, winding the chains F and G. The chain G draws the brake-rod II and sets the brake, as on ordinary car-brakes. The chain F causes the levers I and I to be drawn inward, pulling the chains L, L', L2, and L3, which are connected with the hooked rods to correspond with t and t on adjacent cars, causing the frietion-pulleys on said adjacent ears to be brought into gear and so setting' the brakes on them, and they in turn setting those on ears next to them, and by this means setting the brakes throughout the train by applying force to any one brakewvheel on train.

lVhat I claim as my invention, and desire to secure by Letters Patent, is-

l. In combination, in a ear-brake, the Iixed pulley I3, attached to car-axle, the friction pulley A, the cog-wheels C and I), and the reel-shaft E, these parts bein g combined and operated substantially in the manner and for the uses herein set forth.

2. In combination, ina ear-brake, the shaftboxes I) and Q, which allow the shaft passing through them to be drawn toward and away from the friction-pulley A and cog-wheel I) without binding, substantially as set forth.

In combination, in a car-brake, thelevers I I the hooks M M M2 MS, the stop O, and the chains L L L2 L3,eombined and operated substantially in the manner and for the uses herein set forth.

t. In combination, in a car-brake, the rods L' U', with the chains attached thereto7 together with the stop X and the guide-block X, combined and operated substantmlly in the manner and for the uses herein set forth.

5. In eoinbination,in a car-brake,thebifurcated chains S S', connecting the rods U U with the axle-box I), one portion of said chain pulling over a block-pulley T, combined and operated substantially as herein set forth.

t3. In combination, in a car-brake, the bifureated chain F, connecting the rods .l J with the reel-shaft E, one4 portion of said chain pulling over a block-pulley K, combined and operated substantially as herein set forth.

7. In the herein-described car-brain?, the spring R, arranged to throw the frietion-pul ley out of gear when the brakes are released, operated substantially as herein set forth.

BENJAMIN KELLOGG. XVitiiesses:

.Timms A. CAMERON, Nonni-1T L. Riina. 

